Rolling-mill plant



Patented Sept. 27', i898.

F. H. DANIELS. Y ROLLING MILL PLANT. (Application led Nov. i, 1895.)

(No Model.)

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LMtTlESSES No. 611,565, Patented Sept. 27, |898.

F. H. DANIELS.

,ROLLING MILL PLANT.

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No. 61|',565. Patented Sept. 27, |898.

Y F.'H. DANIELS.

'ROLLING MILL PLANT.

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No. 6I|,565. Patented Sept. 27, |8918.`

F. H. DANIELS.

RLLING MILL PLANT.

(Application led Nov. 7, 1895.)

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SPECIFICATION forming part of Letters Patent No'. 611,565, dated September 27, 1898.

Application led November '7, 1895. Serial No. 56 8,164. (No model.)

To @ZZ whom, it may concern:

Beit known that I, FRED H. DANIELs, a citizen of the United States, residing in the city and county of Vorcester and Commonwealth of Massachusetts, have invented certain new and useful Improvements in Rolling Mill Plants, of which the following is a specification.

The object of my invention is to provide a rollin g-mill plant in which an ingot of large sizesay fourteen to sixteen inches in diameter and weighing two thousand pounds, more or less-may by a continuous process be rolled to wire rods of comparatively small size. The

vdifference in size between so large an ingot and a wire rod has heretofore prevented the continuous production of wire rods from such heavy ingots by reason of difficulties experienced in the manipulation of the product, and it has therefore been the universal custom, so far as I know, to produce rods continuously from metal not larger than four inches by four inches in cross-section. In the arrangement shown in my improved plant I overcome these difficulties heretofore experienced and am able to produce continuously small rods from ingots weighing in the vicinity of two thousand pounds.

In the accompanying four sheets of drawings, A represents four furnaces conveniently arranged to receive and heat the ingots, which may be unloaded from cars upon the tracks 1, laid along the outside of the furnaces. The ingots maybe removed from the furnaces by means of overhead tongs running along a path 2 (indicated by dotted lines) and are placed upon the feed-talole 3, upon which they are advanced to the roughing-train B, Sheet 2, which may be of any desired form, run by an engine conveniently located at`7.

I prefer a mill, as shown in plan on Sheet 2 of the drawings, composed of two pairs of two-high rolls arranged in succession, so that the bloom will receive two reductions at each forward and at each backward pass.

5 and 6 are hydraulic shifters for transfer-L ring blooms laterally from one side to the other of the feed-tables 3 4, so that the ingot may be fed forward and backward through the mill B until it is reduced to a billet of the desired size--say four inches square in cross-section. The billet is then carried on the conveyer 8 to the shears 9, where it is cut into lengths of about four feet.

The feed-tables 3 3 4 4 and conveyer 8 may be actuated in any convenient manner, preferably by means of a shaft connected with the rolls by gears and actuated by an electric motor.

25 is a gate'which may be placed across the path of the advancing billets, stopping their progress, and the billets may then be carried by the endless chain 11, actuated by pulley 10, to the conveyer-12, actuated by pulley 26, and thence by means of the hydraulic shifters 13 fedinto and through the furnaces C.

This manipulation would only occur, ordinarily, in case the mill D were not running; but in the regular operation of the plant the billets would proceed unimpeded from the shears 9 to the billet-mill D, actuated by the shaft 14, which receives power through the pulleys 27 from engines conveniently located, but not shown in the drawings. This mill is what is known as a continuous mill, in which the billet is reduced by a series of pairs of rolls to a billet of about three-fourths of an inch square in cross-section. The billet is then directed, by meansof the switch 24, through the channel 15 into a second continuous mill G, which may be run and the speed of the rolls regulated through the pulley 28 succeeding ve pairs of rolls, and by means of gear-wheels 34 35 increased speed is communicated to shaft 36 and to the last two pairs of rolls.

The rod is reduced to about No. 6 size in mill Gr and is coiled upon the automatic reels I-I and thence removed.

If the mill G should not be running by reason of the formation of cobbles or for any other cause, the billet is diverted by the switch 24 into the channel 54 and thence into the which is actuated by pulley 38 on shaft 14,

which may be belted to pulley 89.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A rolling mill plant, substantially as hereinbefore described, comprisinga primary set of rolls, a conveyer, leading from said rolls, a shear in the line of said conveyer, afurnace adjacent to said conveyer, lateral transfer mechanism to deliver the billets to a conveyer at the opposite end of said furnace, mechanism for transferringa billet into said furnace, and returning said billet to the first-named conveyer, whereby it may be carried to the second set of reducing-rolls, substantially as described.

2. A rolling mill plant, substantially as hereinbefore described, comprisinga primary set of rolls, a conveyer, leading from said rolls, a shear in the line of said conveyer, a furnace adjacent to said conveyer, lateral transfer mechanism to deliver the billets to a conveyer at the opposite end of said furnace, mechanism for transferring a billet into said furnace,

and returning said billet to the first-named conveyer, a second set of rolls, a third set of rolls, for finishing rods of coarser size, and a set of rolls intermediate the second and third sets of rolls for finishing rods of smaller` size, substantially as described.

3. A rolling-mill plant, substantially as llereinbefore described, comprisinga primary heating-furnace, a set of primary reducingrolls and roller feed-tables and hydraulic pushers whereby the bloom may be fed forward and backward through said primary rolls, and reduced to a billet of the required size, a conveyer leading from said rolls, a shear in the line of said conveyer, a furnace adjacent to said conveyer, a movable gate to arrest the forward progress of the billet, lateral transfer mechanism to deliver the billets to a conveyer at the opposite end of said furnace, an hydraulic pusher whereby the billets maybe directed into the furnace and returned to the first-named conveyer, a second set of rolls', a third set of rolls for finishing rods of coarser size, a set of rolls intermediate the second and third sets of rolls for finishing rods of smaller size, a switch for diverting the product of the second set of rolls, and reels for receiving the product of the finishing-trains, substantially as described.

FRED H. DANIELs.

Witnesses:

CHAs. S. HALL, R. M. WASHBURN. 

